\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Extremism: negative appeals (Study I)}
\begin{tabular}{l*{8}{c}}
\hline\hline
                &\multicolumn{1}{c}{Pooled: negative}&\multicolumn{1}{c}{Car drivers}&\multicolumn{1}{c}{Civil servants}&\multicolumn{1}{c}{Criminals}&\multicolumn{1}{c}{Foreigners}&\multicolumn{1}{c}{Muslims}&\multicolumn{1}{c}{Politicians}&\multicolumn{1}{c}{Rich people}\\
\hline
Group appeal    &    -0.13\sym{***}&    -0.90\sym{***}&    -1.31\sym{***}&     1.20\sym{***}&    -0.20\sym{*}  &    0.082         &     0.28\sym{***}&    -0.25\sym{**} \\
                &   (0.03)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         \\
Group-policy appeal&     0.14\sym{***}&   -0.045         &    -0.15         &     0.48\sym{***}&   0.0096         &     0.14         &     0.20\sym{*}  &     0.16\sym{*}  \\
                &   (0.03)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         &   (0.08)         \\
\_cons          &     2.69\sym{***}&     3.01\sym{***}&     3.24\sym{***}&     2.64\sym{***}&     2.78\sym{***}&     2.75\sym{***}&     2.68\sym{***}&     3.03\sym{***}\\
                &   (0.03)         &   (0.06)         &   (0.06)         &   (0.05)         &   (0.06)         &   (0.06)         &   (0.06)         &   (0.06)         \\
\hline
Observations    &    22050         &     3150         &     3150         &     3150         &     3150         &     3150         &     3150         &     3150         \\
FEs respondents &      Yes         &                  &                  &                  &                  &                  &                  &                  \\
FEs groups      &      Yes         &                  &                  &                  &                  &                  &                  &                  \\
Respondents     &     3150         &                  &                  &                  &                  &                  &                  &                  \\
R\textsuperscript{2}&    0.018         &    0.047         &    0.090         &    0.072         &   0.0025         &  0.00090         &   0.0038         &   0.0083         \\
\hline\hline
\multicolumn{9}{l}{\footnotesize Note: Standard errors in parentheses.}\\
\multicolumn{9}{l}{\footnotesize \sym{*} \(p<0.5\), \sym{**} \(p<0.01\), \sym{***} \(p<0.001\)}\\
\end{tabular}
\end{table}
